engine CHRYSLER 300 2020 Repair Manual

192STARTING AND OPERATING
Tongue Weight (TW)
The tongue weight is the downward force
exerted on the hitch ball by the trailer. You must
consider this as part of the load on your vehicle.
Trailer Frontal Area
The frontal area is the maximum height
multiplied by the maximum width of the front of
a trailer.
Trailer Sway Control
The Trailer Sway Control (TSC) can be a
mechanical telescoping link that can be
installed between the hitch receiver and the
trailer tongue that typically provides adjustable
friction associated with the telescoping motion
to dampen any unwanted trailer swaying
motions while traveling.
If equipped, the electronic TSC recognizes a
swaying trailer and automatically applies
individual wheel brakes and/or reduces engine
power to attempt to eliminate the trailer sway.
Weight-Carrying Hitch
A weight-carrying hitch supports the trailer
tongue weight, just as if it were luggage located
at a hitch ball or some other connecting point of
the vehicle. These kinds of hitches are the most
popular on the market today and they are
commonly used to tow small and medium sized
trailers.
Weight-Distributing Hitch
A weight-distributing system works by applying
leverage through spring (load) bars. They are
typically used for heavier loads to distribute
trailer tongue weight to the tow vehicle's front
axle and the trailer axle(s). When used in
accordance with the manufacturer's directions,
it provides for a more level ride, offering more
consistent steering and brake control thereby
enhancing towing safety. The addition of a
friction/hydraulic sway control also dampens
sway caused by traffic and crosswinds and
contributes positively to tow vehicle and trailer stability. Trailer sway control and a weight
distributing (load equalizing) hitch are
recommended for heavier Tongue Weights (TW)
and may be required depending on vehicle and
trailer configuration/loading to comply with
Gross Axle Weight Rating (GAWR) requirements.
WARNING!
An improperly adjusted Weight Distributing
Hitch system may reduce handling,
stability, braking performance, and could
result in a collision.
Weight Distributing Systems may not be
compatible with Surge Brake Couplers.
Consult with your hitch and trailer manufac
-
turer or a reputable Recreational Vehicle
dealer for additional information.

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194STARTING AND OPERATING
TRAILER TOWING WEIGHTS (MAXIMUM TRAILER WEIGHT RATINGS)
NOTE:
The trailer tongue weight must be considered as
part of the combined weight of occupants and
cargo, and it should never exceed the weight
referenced on the “Tire and Loading Informa -
tion” placard. Refer to “Tire Safety Information”
in “Servicing And Maintenance” for further infor -
mation.TRAILER AND TONGUE WEIGHT
Never exceed the maximum tongue weight
stamped on your bumper or trailer hitch.

Weight Distribution
Consider the following items when computing
the weight on the rear axle of the vehicle:The tongue weight of the trailer.
The weight of any other type of cargo or
equipment put in or on your vehicle.
The weight of the driver and all passengers.
NOTE:
Remember that everything put into or on the
trailer adds to the load on your vehicle. Also,
additional factory-installed options or
dealer-installed options must be considered as
part of the total load on your vehicle. Refer to
the “Tire And Loading Information” placard for
the maximum combined weight of occupants
and cargo for your vehicle.
Engine/Transmission Frontal AreaMax. GTW (Gross Trailer
Weight) Max. Tongue Weight
(See Note)
3.6L Automatic 22 sq ft (2.04 sq m)1,000 lbs (454 kg)100 lbs (45 kg)
5.7L Automatic 32 sq ft (2.97 sq m)1,000 lbs (454 kg)100 lbs (45 kg)
Refer to local laws for maximum trailer towing speeds.

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STARTING AND OPERATING195
(Continued)
TOWING REQUIREMENTS
To promote proper break-in of your new vehicle
drivetrain components, the following guidelines
are recommended. Perform the maintenance listed in the
“Scheduled Servicing”. Refer to “Scheduled
Servicing” in “Servicing And Maintenance” for
the proper maintenance intervals. When towing
a trailer, never exceed the GAWR or GCWR
ratings.
Towing Requirements — Tires
Do not attempt to tow a trailer while using a
compact spare tire.
Do not drive more than 50 mph (80 km/h) when towing while using a full size spare tire.
Proper tire inflation pressures are essential
to the safe and satisfactory operation of your
vehicle. Refer to “Tires” in “Servicing And
Maintenance” for proper tire inflation proce -
dures.
Check the trailer tires for proper tire inflation
pressures before trailer usage.
WARNING!

Make certain that the load is secured in the
trailer and will not shift during travel. When
trailering cargo that is not fully secured,
dynamic load shifts can occur that may be diffi -
cult for the driver to control. You could lose
control of your vehicle and have a collision.

When hauling cargo or towing a trailer, do
not overload your vehicle or trailer. Over -
loading can cause a loss of control, poor
performance or damage to brakes, axle,
engine, transmission, steering, suspension,
chassis structure or tires.
Safety chains must always be used
between your vehicle and trailer. Always
connect the chains to the hook retainers of
the vehicle hitch. Cross the chains under
the trailer tongue and allow enough slack
for turning corners.
Vehicles with trailers should not be parked
on a grade. When parking, apply the
parking brake on the tow vehicle. Put the
tow vehicle transmission in PARK. Always,
block or "chock" the trailer wheels.
GCWR must not be exceeded.
Total weight must be distributed between
the tow vehicle and the trailer such that the
following four ratings are not exceeded :
Max loading as defined on the “Tire and
Loading Information” placard.
GTW
GAWR
Tongue weight rating for the trailer
hitch utilized.
WARNING! (Continued)CAUTION!
Do not tow a trailer at all during the first
500 miles (805 km) the new vehicle is
driven. The engine, axle or other parts could
be damaged.
Then, during the first 500 miles (805 km)
that a trailer is towed, do not drive over
50 mph (80 km/h) and do not make starts
at full throttle. This helps the engine and
other parts of the vehicle wear in at the
heavier loads.
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STARTING AND OPERATING197

Four-Pin Connector
Seven-Pin Connector

TOWING TIPS
Before setting out on a trip, practice turning,
stopping, and backing up the trailer in an area
located away from heavy traffic.
Automatic Transmission
Select the DRIVE range when towing. The
transmission controls include a drive strategy to
avoid frequent shifting when towing. However, if
frequent shifting does occur while in DRIVE, you
can use the AutoStick shift control (if equipped)
to manually select a lower gear.
NOTE:
Using a lower gear while operating the vehicle
under heavy loading conditions will improve
performance and extend transmission life by
reducing excessive shifting and heat buildup.
This action will also provide better engine
braking.
Speed Control — If Equipped
Do not use on hilly terrain or with heavy
loads.
When using the Speed Control, if you experi-
ence speed drops greater than 10 mph
(16 km/h), disengage until you can get back
to cruising speed.
Use Speed Control in flat terrain and with
light loads to maximize fuel efficiency.
1 — Ground
2 — Park
3 — Left Stop/Turn
4 — Right Stop/Turn1 — Battery
2 — Backup Lamps
3 — Right Stop/Turn
4 — Electric Brakes
5 — Ground
6 — Left Stop/Turn
7 — Running Lamps
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198STARTING AND OPERATING
AutoStick — If Equipped
When using the AutoStick shift control, select
the highest gear that allows for adequate
performance and avoids frequent down -
shifts. For example, choose “5” if the desired
speed can be maintained. Choose “4” or “3”
if needed to maintain the desired speed.
To prevent excess heat generation, avoid
continuous driving at high RPM. Reduce
vehicle speed as necessary to avoid
extended driving at high RPM. Return to a
higher gear or vehicle speed when grade and
road conditions allow.
Cooling System
To reduce potential for engine and transmission
overheating, take the following actions:
City Driving
In city traffic — while stopped, place the trans -
mission in NEUTRAL, but do not increase
engine idle speed.
Highway Driving
Reduce speed.
Temporarily turn off air conditioning.
RECREATIONAL TOWING (BEHIND
MOTORHOME, ETC.)
Recreational towing (with all four wheels on the
ground, or using a tow dolly) is NOT ALLOWED.
The only acceptable method for towing this
vehicle (behind another vehicle) is on a vehicle
trailer with all four wheels OFF the ground.
DRIVING TIPS
DRIVING ON SLIPPERY SURFACES
Information in this section will aid in safe
controlled launches in adverse conditions.
Acceleration
Rapid acceleration on snow covered, wet, or
other slippery surfaces may cause the driving
wheels to pull erratically to the right or left. This
phenomenon occurs when there is a difference
in the surface traction under the rear (driving)
wheels.
CAUTION!
Towing this vehicle in violation of the above
requirements can cause severe transmission
and/or transfer case damage. Damage from
improper towing is not covered under the New
Vehicle Limited Warranty.
WARNING!
Rapid acceleration on slippery surfaces is
dangerous. Unequal traction can cause
sudden pulling of the front wheels. You could
lose control of the vehicle and possibly have a
collision. Accelerate slowly and carefully
whenever there is likely to be poor traction
(ice, snow, wet, mud, loose sand, etc.).

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200STARTING AND OPERATING
(Continued)
(Continued)
CAUTION!
Always check the depth of the standing
water before driving through it. Never drive
through standing water that is deeper than
the bottom of the tire rims mounted on the
vehicle.
Determine the condition of the road or the
path that is under water and if there are any
obstacles in the way before driving through
the standing water.
Do not exceed 5 mph (8 km/h) when
driving through standing water. This will
minimize wave effects.
Driving through standing water may cause
damage to your vehicle’s drivetrain compo -
nents. Always inspect your vehicle’s fluids
(i.e., engine oil, transmission, axle, etc.) for
signs of contamination (i.e., fluid that is
milky or foamy in appearance) after driving
through standing water. Do not continue to
operate the vehicle if any fluid appears
contaminated, as this may result in further
damage. Such damage is not covered by
the New Vehicle Limited Warranty.
CAUTION! (Continued)
Getting water inside your vehicle’s engine
can cause it to lock up and stall out, and
cause serious internal damage to the
engine. Such damage is not covered by the
New Vehicle Limited Warranty.
CAUTION! (Continued)

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IN CASE OF EMERGENCY209
3. Firmly grasp the cap and rotate it counter -
clockwise to unlock it.

Turn Signal Bulb Location

4. Squeeze the two tabs on the side of the bulb socket and pull straight out from the lamp
assembly.
5. Disconnect the bulb from the wiring connector and install the replacement bulb.
6. Install the bulb and connector assembly straight into the lamp until it locks in place.
7. Install the turn signal bulb cap in the headlamp housing and rotate clockwise to
lock in place.Front Fog Lamp
The Front Fog Lamps use LED sources that are
not serviceable separately. The Front Fog Lamp
must be replaced as an assembly; see an
authorized dealer.
Front/Rear Side Marker Lamp
The Side Markers use LED lamps that are not
serviceable separately. The Side Markers must
be replaced as an assembly, see an authorized
dealer.
Rear Backup Lamp And Turn Signal Lamps

The Rear Backup and Turn Signal Lamp use LED
sources that are not serviceable separately. The
Rear Lamps must be replaced as an assembly,
see an authorized dealer for further information.

License Lamp
The License Lamp uses an LED source that is
not serviceable separately. The License Lamp
must be replaced as an assembly; see an
authorized dealer.
Center High Mounted Stop Lamp (CHMSL)
The CHMSL Lamp uses LED sources that are
not serviceable separately. The CHMSL Lamp
must be replaced as an assembly; see an
authorized dealer.
FUSES
WARNING!
When replacing a blown fuse, always use
an appropriate replacement fuse with the
same amp rating as the original fuse. Never
replace a fuse with another fuse of higher
amp rating. Never replace a blown fuse with
metal wires or any other material. Do not
place a fuse inside a circuit breaker cavity
or vice versa. Failure to use proper fuses
may result in serious personal injury, fire
and/or property damage.
Before replacing a fuse, make sure that the
ignition is off and that all the other services
are switched off and/or disengaged.
If the replaced fuse blows again, contact an
authorized dealer.
If a general protection fuse for safety
systems (air bag system, braking system),
power unit systems (engine system, trans -
mission system) or steering system blows,
contact an authorized dealer.
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210IN CASE OF EMERGENCY
(Continued)
GENERAL INFORMATION
The fuses protect electrical systems against
excessive current.
When a device does not work, you must check
the fuse element inside the blade fuse for a
break/melt.
Also, please be aware that when using power
outlets for extended periods of time with the
engine off may result in vehicle battery
discharge.
Blade Fuses

UNDERHOOD FUSES
The Front Power Distribution Center is located
in the engine compartment. This module
contains fuses and relays. Fuse cavity location
and descriptions are printed on the inside of the
power distribution center cover.
Front Power Distribution Center

1 — Fuse Element
2 — Blade Fuse with a good/ functional fuse ele -
ment.
3 — Blade fuse with a bad/ not functional fuse
element (blown fuse).
CAUTION!
When installing the power distribution
center cover, it is important to ensure the
cover is properly positioned and fully
latched. Failure to do so may allow water to
get into the power distribution center and
possibly result in an electrical system
failure.
When replacing a blown fuse, it is important
to use only a fuse having the correct
amperage rating. The use of a fuse with a
rating other than indicated may result in a
dangerous electrical system overload. If a
properly rated fuse continues to blow, it
indicates a problem in the circuit that must
be corrected.
CAUTION! (Continued)

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212IN CASE OF EMERGENCY
2130 Amp Pink
20 Amp Blue – Police –Headlamp Washers – If Equipped
Police Bat Feed #2
22 40 Amp Green /
20 Amp Blue – Police –
Engine Cooling Pump (6.2L Supercharged) / Police Bat Feed # 3
23 20 Amp Blue –Police Bat Feed # 1
24 50 Amp Red /
20 Amp Blue –
Radiator Fan (6.2L Supercharged) / Police Ignition Run/ACC Feed # 3
28 – –Fuse – Spare
29 –15 Amp Blue Transmission Control Module (Challenger / Charger Police)
30 – –Fuse – Spare
31 –25 Amp Clear Engine Module
32 – –Fuse – Spare
33 – –Fuse – Spare
34 –25 Amp Clear ASD Feed #1
35 –20 Amp Yellow ASD Feed #2
36 –10 Amp RedAnti-Lock Brake Module / Steering Column Lock Module (300 if
equipped)
37 –10 Amp Red Engine Controller
38 –10 Amp Red Airbag Module
39 –10 Amp Red A/C Clutch / EPS – If Equipped / Vacuum Pump – If Equipped
Cavity Cartridge Fuse Mini-FuseDescription

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IN CASE OF EMERGENCY217
(Continued)
(Continued)
JACKING AND TIRE CHANGING
60
– –Fuse – Spare
61 – –Fuse – Spare
62 – –Fuse – Spare
63 – –Fuse – Spare
64 –25 Amp Breaker Rear Windows (Charger/300)
65 –10 Amp Red Airbag Module
66 – –Fuse – Spare
67 –10 Amp RedRain and Light Sensor / Sunroof / Inside RearView Mirror /
Police Run Acc Relay
68 –10 Amp Red Rear USB Timer / Rear Sunshade – If Equipped
69 – –Fuse – Spare
70 – –Fuse – Spare
Cavity Cartridge Fuse Mini-FuseDescription
WARNING!
Do not attempt to change a tire on the side
of the vehicle close to moving traffic. Pull
far enough off the road to avoid the danger
of being hit when operating the jack or
changing the wheel.
Being under a jacked-up vehicle is
dangerous. The vehicle could slip off the
jack and fall on you. You could be crushed.
Never put any part of your body under a
vehicle that is on a jack. If you need to get
under a raised vehicle, take it to a service
center where it can be raised on a lift.
WARNING! (Continued)
Never start or run the engine while the
vehicle is on a jack.
The jack is designed to be used as a tool for
changing tires only. The jack should not be
used to lift the vehicle for service purposes.
The vehicle should be jacked on a firm level
surface only. Avoid ice or slippery areas.
WARNING! (Continued)
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